Railway car truck



a 20 /7 /4 /7 f5 2% v 23 ,7 v INVENTOE:

Feb. 23, 1937. J, HEKTNER 2,071,779

RAILWAY CAR TRUCK Original Filed Sept. 5, 1935 H5 147' rozlws rs.

Patented Feb. 23, E937 umrao STATES.

2,071,794 RAILWAY CAR TRUC Joel Hektner, Canton,

Timken Roller Bearing Company,

a corporation of Ohio Original application Sept Divided and this application July 10,

38,866. 1936, Serial No. 89,924

Ohio, assignor to The Canton, Ohio,

ember 3, 1935, Serial No.

3 Claim5. (Cl. 105-223) This application is a division of my application Serial No. 38,866 filed September 3, 1935 for Railway car truck. The invention relates to trucks for railway 5 cars whose axles are mounted in antifriction bearings and it has for its principal object to relieve the bearings of such an axle of torsional strains due to individual wheel or axle movements relative to other parts of the truck. The oinvention consists principally in mounting the bearing housing of such an axle or frame in such a way as to permit such housing to have a pivotal movement about an axis transverse to the axle and also about a vertical axis, such 15 double pivoting of the bearing housing permitting self-alining movement of the bearings and thus relieving them of .torsional strains. The invention further consists in the railway car truck and in the parts and combinations and ar-" rangements of parts hereinafter described and claimed.

In the accompanying drawing,

v Fig. 1 isa partial vertical sectional view of a railway car axle and the adjacent portion of 25 a car truck embodying my invention,

Fig. 2 is a transverse vertical sectional view on the line 2-2 in Fig. 1, looking in the direction of the arrows and Fig. 3 is a sectional view on theline 3--3 in 30 Fig. 2, looking in the direction of the arrows.

In the drawing is shown a truck side frame I of common construction provided with an end portion that has spaced perforated bosses 2 on its under side to receive a pin 3 that is disposed 35 transversely of the axle 4. Mountedon said 'pin3 is av pivot block 5 that has a central stem portion 6 of cylindrical configuration oscillatable in a concaveseat I provided on the under side of the end portion of said side frame between 40 said bosses 2 and which has projectingv bottom flange portions 8 that are received in slots 9 formed by' upstanding lugs l8 onthe bearing housing ll,vsaid lugs having flanged portions l2 overlapping the sides of said pivot block flanges 4'5 8. Said flanges 8 are convexly curved from end to end, whereby said'bearing housing is permitted swinging movement on said flanges 8 of said pivot block 5. A

. Extending into the'bearing housing It is the 50 end portion of the axle 4 of a railway car or the like, on which are mounted spaced tapered roller bearings. The cones l3 or inner bearing members are spaced apart by a sleeve l4 mounted on the axle. The bearing. cones iii are arranged 55 with their large ends disposed inwardly and the innermost bearing cone I3 is mounted against a closure and abutment ring I5 which is seated against a shoulder IE on the axle. Bearing rollers I1 aremounted on' said cones l3 and the cups l8 or outer bearing members 5 are mounted in said housing ll, whose outer end is closed by a cap 19 that is secured to the housing by screws 20 and that has an inwardly extending sleeve portion 2! that abuts. against the outermost bearingv cup nermost end of the bearing housing II is closed by a ring22 that is secured to the housing by screws 23 and has a sleeve portion 24 extending inwardly into the bearing housing, abutting against the innermost bearing cup l8 to hold it in position. The drawing shows only one end portion of one axle, it being'understood that the other end portion of the other axle will be of similar construction and that the. truck side frame member may be of any well-known type. While the bearing arrangement just described is a preferred arrangement, it is understood that the invention is not limited to any specific hearing arrangement, but is concerned with the pivotal mounting of the-bearing housing. 2 The above described mounting of the bearing housing permits swinging movement of the bearings and housing about an axis transverse to the axle and also about a vertical axis. Thus selfalining movement of the bearings and housing is permitted while maintaining tightness of fit of the parts underallconditions. Obviously, numerous' changes might be made, particularly in the truck side frame construction and in the bearing arrangement, without departing from the invention. and I do not wish to be limited to the precise construction shown.

.What I claim is:

1. A car truck comprising a frame member, an axle, a bearing housing receiving said axle, anti- 40 friction bearings between said axle and said housing, the top of said housing having spaced overhanging lugs, a pivot block having flanges fitting beneath said lugs, said flanges being convexly curved endwise and a pivot pin supporting said pivot block, said-pin being secured to said frame and extending transversely of the axle.

2. A car truck comprising a frame member, an axle, a bearing housing receiving said axle, antifriction bearings between said axle and said housing, said frame having spaced perforated bosses disposed transversely of said axle, the top of said housing having-spaced overhanging lugs, a pivot block having .a portion disposed between said bosses and havin flanges fitting beneath I8. The in- 10 pivot block.

of said housing having spaced overhanging lugs, a pivot block having a portion disposed between said bosses and convexly curved on its top to fit said concave seat and said block having flanges fitting beneath said lugs, said flanges being convexly curved endwise and apivot pin extending into said boss perforations and supporting said JOEL II-IEK'TNER. 

